Detroit DD13 GHG14 (2014-16) Fault Code: SPN 3363 FMI 3 (ACM) Diesel Exhaust Fluid Coolant Valve Circuit Failed High
DESCRIPTION:
Diesel exhaust fluid (DEF) coolant valve circuit failed high.
MONITORED PARAMETER:
DEF coolant valve.
TYPICAL ENABLING CONDITIONS:
DEF tank temperature less than 36°F and engine coolant temperature greater than 32°F.
MONITOR SEQUENCE:
None
EXECUTION FREQUENCY:
Continuous when enabling conditions met.
TYPICAL DURATION:
Two seconds
DASH LAMPS:
1. MIL
2. CEL
ENGINE REACTION:
Derate 10%
VERIFICATION:
Output component test.
NOTE: If code not active, release vehicle to customer.
PROBABLE CAUSES:
1. DEF coolant valve harness connector.
2. Wiring between DEF coolant valve harness connector and the 120-pin ECM connection.
![International Truck ISIS - Oncommand Service Information Q4.2020 [04.2020]](https://www.ecuforcetruck.com/wp-content/uploads/2022/01/OnCommand-2020-1-300x300.png)
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